Method for orderly charging electric automobile

A technology of electric vehicles and charging methods, applied in the direction of electric vehicle charging technology, electric vehicles, battery circuit devices, etc., can solve the charging demand and the economic operation of the power grid has not been reasonably solved, and there are few researches on the orderly charging of electric vehicles and other issues, to achieve the effect of solving the charging demand and the economic operation of the power grid, avoiding the peak of the power load, and filling the trough of the load

Inactive Publication Date: 2012-08-22
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

In the case of orderly charging of electric vehicles at home and abroad, there are many studies on the impact of charging load on the power grid, but there are few studies on the solutions to the orderly charging of electric vehicles, and the contradiction between the user's charging demand and the economic operation of the power grid has not been solved. reasonable solution

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  • Method for orderly charging electric automobile
  • Method for orderly charging electric automobile
  • Method for orderly charging electric automobile

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specific Embodiment

[0043] According to the predicted total energy E required for charging and the grid background load curve p B (t), the ideal load curve can be obtained in the case of electric vehicle charging load to get According to this, the ideal charging load curve is obtained After the user connects the electric vehicle to the charging pile, the following steps are performed:

[0044] Step 1: After the user connects the electric vehicle to the i-th charger, set the desired charging completion time T D .

[0045] Step 2: The i-th charger communicates with the battery management system to read the current state of charge (SOC) of the battery and the charging power curve p of the battery i (t), put p i (t) and T D Upload to the orderly charge controller, orderly charge controller according to p i (t), T D Based on the background load curve of the power grid obtained from the load forecast, it is judged whether the charging process is adjustable: if it is not adjustable, perform s...

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Abstract

The invention discloses a method for orderly charging an electric automobile, belonging to the field of the smart grids. The invention provides the method for orderly charging the electric automobile by establishing an optimization equation. The method is capable of meeting the charging requirements of users to an utmost extent. On this basis, the new power load peak of a grid caused by ordered charging can be effectively avoided, and the load valley can be filled to an utmost extent; and therefore, the economical efficiency of the operation of the grid and the operation of a generator is improved, and the contradiction between the charging demands of the users and the economical operation of the grid is effectively solved. Simultaneously, overload caused by charging loads and impact on the grid due to simultaneous input of vast charging loads can be avoided.

Description

technical field [0001] The invention belongs to the field of smart grids and relates to an orderly charging method for electric vehicles. Background technique [0002] With the development of technology in the field of electric vehicles, electric vehicles and plug-in hybrid vehicles are becoming more and more popular. Large-scale disorderly charging of electric vehicles will cause negative impacts such as increased peak-to-valley differences in the power grid, increased operating costs and power generation costs, and impact loads. [0003] Electric vehicle charging load is different from other electricity loads in that it is adjustable on a time scale, and the grid can actively control it to achieve economical operation of the grid. [0004] How to improve the economy of grid operation as much as possible while satisfying the user's charging demand is the key of the present invention. In the case of orderly charging of electric vehicles at home and abroad, there are many s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCY04S30/12Y02T90/167
Inventor 李秋硕肖湘宁郭静陈筱陆郭春林
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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